Multiple cross-site scripting (XSS) vulnerabilities in ProjectPier 0.8 and earlier allow remote attackers to inject arbitrary web script or HTML via (1) a message, (2) a milestone, or (3) a display name in a profile, or the (4) a or (5) c parameter to index.php.
http://www.securityfocus.com/bid/27857
http://www.securityfocus.com/archive/1/488294/100/200/threaded
http://www.projectpier.org/node/679